Nice attempt Patrick. I agree with the color balance being off. Obviously posing is key when shooting portraits. I understand your time constraint, but using this as an example I will say this to think about: If your background is important in your photo, such as this sunset, allow it to have more in the picture. You would do that buy stepping back and framing the subject to the left of right of the picture allowing the sunset to dominate the other side of the frame. Also, unless your subject's appearence has the ability to pull off a tight crop, such as a fashion or beauty shot, standing back would seriously help balance the picture more. You should also try and make sure that your subjects shoulders are straight i.e. the 2nd picture.
Looks like a nice lady with a beautiful sunset. Nice job seeing the opportunity! 